Hi Everyone,
Recently I bought a new computer (HP desk top) and a Cambridge Audio DAC Magic. My desk top has a digtial coax output, which I have been using. With the Cambridge DAC they also supplied a USB cable, type A to type B male. I haven't used the USB cable, because I'm a newbie at this, and don't know how to get it to work, other than hooking up the cable, and making sure the CA is switched to the USB port. I looked thru both mauals, even went to HP's website, but if was there I didn't see it. I'm new at downloading music too, I use primarily Itunes, software, if that makes a difference. I know to use the digital output, after switching to the analog output and back again, I have to play something thru Windtows (Vista) first), like creating a path, for the Itunes to work. So my questions are:

a) how do I get the USB port to work?

b) will the USB port bring better sound, or is just a conveince feature, (if you don't have a digital output).

c) Anyone have any suggestions for music websites? So far all I've used is Itunes and Amazon, I do prefer the "pay as you go" websites.

Thanks in advance for your comments, and I aplogize for any spelling errors. I'm lost without "spellcheck". If it's here, I haven't fought that yet either.